Alarm-horn.



WILLIAM EDWIN RUSSELL 8; `WILLIAM EARL RUSSELL.

ALARM HORN.

APPLIQATION FILED JAN. a1, 1911.

1 ,120,653, Patented Dec. 8,1914.

l 2 SHBETS-SEEBT 1.

O'J W c? m f BY L ATTOR/VE WILLIAM EDWIN RUSSELL & WILLIAM EARL RUSSELL.

ALARM HORN.

APPLICATION FILED JAN.31.1911.

1,120,658. Patented 1190.8, 1914.

2 SHEETS-*SHEET 2.

'UNITED sfrafrns PATENT oFFrcE.

`fflLLIAlllI EDWIN RUSSELL AND WILLIAM EARL RUSSELL, OF DANBURY, CONNECTICUT, ASSIG-NORS, BY MESNE ASSIGNMENTS, COMPANY, A CORPORATION OF DELAWA TO LOVELL-MCCONNELL RE.

MANUFACTURING ALARM-HORN.

To all whom t may conce-ra Be it known thatI we. 511.111,01 llowix RUssicLL and 'lLLLiM liant. Rossi-11.1.. both citizens ot' the United States. residing in the city o1 Danbury, county of Fairfield, and State of Connecticut. have invented certain new and useful Improvements in Alarm- Horns; and we do declare the following to be a` l'ull, clear, and exact description ot' the invention. such as will enable others skilled in the art to which it appertains to make and use the same.

Our invention relates to alarm horns, and

is in the nature ol. a modification of the im provenient shown and described in our pending application Serial No. 507,493. filed December 15, 1910.

The object ol the present invention is to utilize Vthe main vfeatures ot' our improvement set t'orth in said application in connection with a suitable contact point carried by the diaphragm so that the alarm will be due solely to the vibration oll the diaphragm and not to impulses communicated through perforations in the diaphragm as is the case in the instance. ol' the improvement set forth in said application.

lVith these ends in view our invention consists in certain details of construction and combination of parts hereinafter fully described and then particularly pointed out in the claims which conclude this descrip tion.

In the accompanying drawing Figure 1 is an elevation partly in section illustrating our improvement-Fig. 2 an end view ot' the rotary head carried by the shat't of the 1notor-Fig. 3 an elevation ot the disk or diaphragm which we prefer to employ-- Fig. 4 a sectional elevation ot' thevrotary motor head showing a modification ot our improvement, and Fig. 5 an edge elevation of the diaphragm showing a modilied form of contact.

Similar numbers of reference denote like parts in the several figures of the drawing.

Our improvement is operated by any suitable motor. preferably actuated by electricity, to the sha'lt 1 of which motor is secured the rotary head 2 which is provided in its outer face with pockets 3 that are preferably inclined outwardly as shown at Fig. l, and within these pockets are balls l that are confined by means of a retainer Specication of Letters Patent.

Patented Dec. 8, 1914. serial No. 605,797.

plate 5 secured to the head 2. The balls project through perforations (i in the retainer plate the diameter of which pei-torations is less than the diameter ot' the balls. As the motor rapidly revolves the balls will be thrown outwardly by centrifugal force and will bind against the sides of the inclined pockets 3.

T is the disk or diaphragm having secured to its central portion the block S which latter projects from the inner face of the diaphragm, and this block is recessed at i) and within this recess is a ball l0 that is confined by means of a retainer plate 11 secured to the block. This ball 10 projects through a perforation 1:? in the plate 11 and the diameter of this perforation is less than the diameter of the ball. The sha'lt of the motor is oll'set and the pockets 3 are l'ormed in the head 2 concentric with said shaft s0 that the balls i will. as the head revolves. successively come in contact with the ball 10 and thereby vibrate the diaphragm 7. The balls l-, 10, are perfectly free and have a rolling contact so that there is comparatively little i'riction to retard the speed oiE the motor. lt desired, the balls -t may be backed by coil springs as shown at 13 in the instance of one ot' the balls at Fig. 1, so that there will be initially a good contact against the ball 10 while the motor is getting up speed but we do not wish to be 'limited in this respect since springs of this sort are not at all necessary. In case coil springs were used to back the balls 4 the pockets 3 could be parallel witl. the shaft 1 and not flared. l'Vhile we prete-r to utilize pockets providing sl'iaces behind the balls 4 so that the latter may yield more or less when contacting against the ball 10, we do not wish to be limited in this respect since shallow circular pockets 14. as shown at Fig. 4. may be employed against the bottoms oi' which pockets the balls always rest, but the balls 4 in all instances are perfectly free to revolve in any direction. Instead of a rolling contact on the diaphragm 7 We can employ a contact 15 rigidly secured to the diaphragm; such as is shown at Fig. 5 but we prefer the construction shown at Fig. 1 since it gives the best results.

1G is the motor casing to which is secured in any suitable manner the base 17 of any approved horn or resonator 18. the diabeing conned in position at its enter edge between said base and casing.

Having thus described our invention what we claim as new and desire to secure by Let- .Yters Patent is zl. An alarm hornfcomprising a horn or resonator, a diaphragm carrying on its inner face a. rolling pontact, and a rotary head carrying ree rotating balls adapted to successively' engage saidv contact.

2. An alarm horn, comprising a horn or resonator, a diaphragm, al rolling Contact carried by the inner face of said diaphragm,

a rotary head, and guided rotary balls carried. thereby adapted to be successively brought into forcible engagement with said contact.

3. An alarm horn, comprislng a horn or resonator, a diaphragm, a contact carried by the inner face of said diaphragm, a rotary l head having recesses, balls freely contained within vsaid recesses and adapted to successively engage said contact as the head re-` volves.

4. An alarm horn, comprising a horn or resonator, a diaphragm carrying on-its inner face a rolling Contact, and a rotary head carrying rolling contact members adapted tosuccessively engage said contact.

5. nran alarm signal of the character del scribed, a diaphragm, a plurality of strikers,

termediate blow transmitter arranged between said strikers and said diaphragm, said strikers and said blow transmitter being hardened and free to rotate about their own axes respectively.

7 An alarm horn comprising a horn or v resonator, a diaphragm carrying on its inner face a rolling Contact, a rotary head, and rolling contact members carried thereby and guided therein and adapted to successively engagesaid Contact.

8. An alarm horn including a diaphragm having a socket member secured thereto adjacent to the center, a rotatable ball disposed within said socket, a pair of diaphragm clamping members, a' resonator carried by one of said members, and a high speed electric motor carried by the other of said members, and having its shaft substantially at right-angles to the plane o said diaphragm and eccentric-inY respectA line normal to said diaphragm and extendig through said thereof, a frame member having its' peripheral portion held rigid in respect to the peripheral portion of the diaphragm, and a high speed electric motor secured to said frame member, and having its axis substantially at right-angles to said frame member and eccentric in respect thereto, and a rotor lbetween said frame member and 'said diaphragm, and having recesses in the face thereof, and carried by said shaft, and havin a series of rotatable contacts freely contained within said recesses adapted for successive engagement with said wear piece.

l0. An alarm horn including a diaphragm having a rotatable wear piece adjacent to the center thereof, a frame member having its peripheral portion held rigid in respect to the peripheral portion of the diaphragm, and a high speed electric motor secured to said frame member, and having its axis substantially at right-angles to said frame member and'eccentric in respect thereto, and a rotor between said frame member and said diaphragm, and carried by said shaft, and having a series of rotatable contacts adapted for successive engagement with said wear piece.

In testimony whereof we affix our signatures in presence of two witnesses.

WLLAM EDWIN RUSSELL. WILLIAM EARL RUSSELL. lvVitnesses:

MARGARET L. FEELEY, EDMUND Rrcnnss.'

@einen mi this patent-may be obtaine for :five cents each, by a'dresing the Commissioner of raient-.1,

' Washington, D. C. 

